/* JAI-Ext - OpenSource Java Advanced Image Extensions Library
*    http://www.geo-solutions.it/
*    Copyright 2014 GeoSolutions


* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at

* http://www.apache.org/licenses/LICENSE-2.0

* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.eclipse.imagen.media.binarize;

import java.awt.RenderingHints;
import java.awt.image.RenderedImage;
import java.awt.image.renderable.ContextualRenderedImageFactory;
import java.awt.image.renderable.ParameterBlock;
import org.eclipse.imagen.CRIFImpl;
import org.eclipse.imagen.ImageLayout;
import org.eclipse.imagen.ROI;
import org.eclipse.imagen.media.opimage.RIFUtil;
import org.eclipse.imagen.media.range.Range;
import org.eclipse.imagen.media.range.RangeFactory;

/** {@link ContextualRenderedImageFactory} implementation used for creating a new {@link BinarizeOpImage} instance. */
public class BinarizeCRIF extends CRIFImpl {

    /** Constructor. */
    public BinarizeCRIF() {
        super("Binarize");
    }

    /**
     * Creates a new instance of <code>BinarizeOpImage</code> in the rendered layer.
     *
     * @param pb The source image and the input parameters.
     * @param hints Optionally contains destination image layout.
     */
    public RenderedImage create(ParameterBlock pb, RenderingHints renderHints) {
        // Get ImageLayout from renderHints if any.
        ImageLayout layout = RIFUtil.getImageLayoutHint(renderHints);

        // Getting source
        RenderedImage src = pb.getRenderedSource(0);
        // Getting parameters
        double threshold = pb.getDoubleParameter(0);
        ROI roi = (ROI) pb.getObjectParameter(1);
        Range nodata = (Range) pb.getObjectParameter(2);
        nodata = RangeFactory.convert(nodata, src.getSampleModel().getDataType());

        return new BinarizeOpImage(src, renderHints, layout, threshold, roi, nodata);
    }
}
